Thema Subject Categories 1.4

Previous versions of Thema are still available 1.3 1.2.

Browse the Thema subject categories hierarchy, or search for a specific term within the hierarchy.

See the search hints below.

Notation Category heading Add Mod ?
G Reference, Information and Interdisciplinary subjects
Use all G* codes for: specialist and general adult titles. DO NOT USE: code ‘G’ itself, but select specific categories from section G*. Use all G* codes with: other subject categories and qualifiers where appropriate
GB Encyclopaedias and reference works
GBA General encyclopaedias
Use for: non-subject-specific works only
GBC Reference works
Use with: other subject code indicating the area or scope of the work.
See also: CB* Language: reference and general and its subcategories, DSR* Literary reference works and its subcategories
GBD Miscellanies and compendia
Use for: works containing a mixture or assortment of pieces compiled from varied sources and that can include many subjects and be in a variety of different forms, such as quotes, facts, illustrations etc. Use with: other subject codes when the miscellany covers one broad subject, (e.g. for a bestiary use with WN* codes).
See also: WDKX Trivia and quiz questions

version detail